Line Buffering Module
Example usage:
```javascript
var LineBuffer = require('line_buffer'),
fs = require('fs);
var lb = new LineBuffer();
lb.on('line', console.log);
var rs = fs.createReadStream('./a-big-long-file.txt');
rs.on('readable', function() {
var data;
while((data = rs.read()) != null) {
lb.write(data);
}
});
```